#include <iostream>
using namespace std;

class Base {
	public:
		int val;
		Base() {
			cout << "Base Constructor" << endl;
		}
		~Base() {
			cout << "Base Destructor" << endl;
		}
};

class Base1: public Base {	};
class Base2: public Base {	};
class Derived: public Base1, public Base2 {	};
int main() {
	Derived d;
	return 0;
}
